G-series high-speed trains (Fuxing CR400/CRH380 EMUs) run from Shanghai Hongqiao to Huainan South (Huainan Nan), usually via Nanjing South and Hefei South. These services offer Second, First, and on many trains Business Class seating. Speeds reach up to 350 km/h (217 mph) between Shanghai and Nanjing, then operate around 250–300 km/h (155–186 mph) from Nanjing to Hefei and onward to Huainan South. Depending on the stopping pattern, the journey typically takes about 3 hours 15 minutes to 3 hours 50 minutes, with limited-stop trains skipping smaller stations. Onboard you can expect reserved seats, power outlets, and trolley service. In comparison, slower D-series EMU trains use sections of 200–250 km/h (124–155 mph) track and make more stops, resulting in a longer travel time of roughly 4.5 to 6 hours; these may depart from Shanghai Hongqiao or Shanghai main station. Conventional T/K services also exist on this corridor at 120–160 km/h (75–99 mph), taking about 7 to 10 hours and usually arriving at Huainan (city) rather than Huainan South. Travelers prioritizing the shortest time should select the G-series; D-series and conventional trains suit lower fares or when high-speed tickets are limited.